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Simple Mail Transfer Protocols (SMTP)
The application layer protocols for electronic mail is SMTP( Simple mail transfer protocols).
Internet electronic mail has many components including mail services that house user mailboxes mail readers that allow users to read and write messages a standard for defining the structure of an e mail message and application layer protocols. Thais define how messages are passed between servers, how message are passed between servers and mail readers, and how the contents of certain parts of the mail message ( for example a mail message header) are to be interpreted.
Asynchronous or Statistical Time Division Multiplexing As we have seen synchronous TDM does not guarantee that the full capacity of a link in sued. In fact it is more like
Question: a) In a wireless network where WEP is enforced as security mechanism, what procedure would the network manager adopt for changing WEP default keys. b) Using Pla
Explain Asynchronous FDDI Asynchronous bandwidth is allocated utilizing an eight-level priority scheme. Every station is assigned an asynchronous priority level. FDDI as wel
The steps of forwarding the packets of information is known routing. The information about receivers is saved in routing tables. Note that several entries have same next hop. It is
What is the difference between TFTP and FTP application layer protocols? Ans) TFTP - Trivial File Transfer Protocol A stripped down version of FTP, easy to use and fast. TFTP
Data Transfer After connection is established bidirectional data transfer can take place. The client and server can both send data and acknowledgments. Figure show
Switches operate at layer 2. They enhance bandwidth by decreasing the number of devices sharing the media. They isolate collisions. Like a bridge they forward traffic based upon la
A logical circuit that is created by Virtual channel links. It carries data among two endpoints in a network. The one more name for Virtual Channel is Virtual Circuit.
List the steps included in creating the checksum. a. Separate the data into sections b. Add the sections together using 1's complement arithmetic c. Take the complement o
What is Unacknowledged connectionless service This service is a datagram-style service. It is a very simple service that does not involve any of the flow- and error-control mec
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